It prevents the use of macros, bots, packet sniffers and other 3rd party programs that can be used to get an advantage in the game. Gepard Shield also prevents our players from modifying files that should not be modified (for example, editing job sprites to cut frames off skill animations or making monsters bigger). This shield will help balance out the game play for our players and you should no longer be worried about another player using macros or 0 delay cheats.